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16192 Laird (2000 AU207)
Classification: Main-belt Asteroid          SPK-ID: 2016192
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2316155566700258 3.1513e-08  
a 2.307898358365842 6.9407e-09 au
q 1.773353195355099 7.2934e-08 au
i 2.45400855727732 3.1248e-06 deg
node 109.2728849202312 9.3624e-05 deg
peri 225.9171986234151 9.4166e-05 deg
M 6.928415138185754 1.1264e-05 deg
tp 2458975.853523228556
(2020-May-06.35352323)
4.0041e-05 TDB
period 1280.629330193854
3.51
5.777e-06
1.582e-08
d
yr
n .2811117873940194 1.2681e-09 deg/d
Q 2.842443521376585 8.5482e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1230  
   data-arc span      15310 days (41.92 yr)  
   first obs. used      1978-11-29  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54501  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:28:43  

Additional Information
 Earth MOID = .764581 au 
 Jupiter MOID = 2.53778 au 
 T_jup = 3.549 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO267769  

16192 Laird           Discovered 2000 Jan. 4 by Spacewatch at Kitt Peak.
Canadian physicist Elizabeth Rebecca Laird (1874-1969) was known for her research on soft x-rays, the Raman effect and the effects of microwave radiation on biological materials. As head of the physics department at Mt. Holyoke College from 1904 to 1940 she inspired many women to pursue scientific careers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

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Alternate Designations
 2000 AU207 = 1978 WN9 = 1981 NP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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